摘要
为研究气井钻井四通在放喷工况下的冲蚀行为及规律,针对3种常用材料(25CrNiMo,Ni625,4130)在不同冲蚀速度、冲蚀角度条件下开展了冲蚀特性及损伤机理测试,并进行了性能优选。研究结果表明:在相同测试条件下,Ni625的冲蚀速率明显低于25CrNiMo和4130,具有更好的抗冲蚀性能,而25CrNiMo和4130的抗冲蚀性能接近;在不同冲蚀角度条件下,3种材料的冲蚀速率在初始阶段均随冲蚀角度增大而增加,并在30°左右达到峰值后逐渐降低;3种材料的冲蚀速率与冲蚀速度呈明显的正相关关系。研究结果能够为钻井四通材料优选、寿命预测等提供理论依据,有效提升钻井四通本质安全。
In order to study the erosion behavior and rule of gas well drlling spool under blowout conditions,the erosion characteristics and damage mechanism of three commonly used materials(25CrNiMo,Ni625,4130)were tested under different erosion speeds and erosion angles,and the property was optimized.The results show that under the same test conditions,the erosion rate of Ni625 is significantly lower than that of 25CrNiMo and 4130,and the Ni625 has better erosion resistance property,while the erosion resistance property of 25CrNiMo and 4130 is relatively close.Under the condition of different erosion angles,the erosion rate of the three materials increases with the increase of erosion angle at the initial stage,and then decreases gradually after reaching a peak value at about 30°.The erosion rate and erosion speed of the three materials is positively correlated.The research results can provide theoretical basis for material optimization and life prediction of drlling spool,and effectively improve the intrinsic safety of drlling spool.
作者
高凯歌
赵超杰
闫柯乐
靳彦欣
樊朝斌
苗智瑜
刘铭刚
葛鹏飞
GAO Kaige;ZHAO Chaojie;YAN Kele;JIN Yanxin;FAN Chaobin;MIAO Zhiyu;LIU Minggang;GE Pengfei(Research Institute of Safety Engineering Co.,Ltd.,SINOPEC,Qingdao 266104,China;Southwest Oilfield Service Corporation,SINOPEC,Chengdu 610016,China;Southwest Oil and Gas Company,SINOPEC,Chengdu 610095,China;Drilling Technology Research Institute,Shengli Petroleum Administration Bureau,SINOPEC,Dongying 257017,China)
出处
《断块油气田》
北大核心
2025年第1期165-169,共5页
Fault-Block Oil & Gas Field
基金
中国石油化工股份有限公司科研课题“川渝地区裂缝性气藏钻井井控风险评价技术”(P21069)。
关键词
钻井井控
钻井四通
冲蚀磨损
材料优选
drilling well control
drilling spool
erosion and wear
material optimization
